freebsd-skq/contrib/gcc/config/arm/linux-elf.h
2007-05-19 01:19:51 +00:00

107 lines
3.3 KiB
C

/* Definitions for ARM running Linux-based GNU systems using ELF
Copyright (C) 1993, 1994, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
2005, 2006
Free Software Foundation, Inc.
Contributed by Philip Blundell <philb@gnu.org>
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2, or (at your
option) any later version.
GCC is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, write to
the Free Software Foundation, 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
/* elfos.h should have already been included. Now just override
any conflicting definitions and add any extras. */
/* Run-time Target Specification. */
#undef TARGET_VERSION
#define TARGET_VERSION fputs (" (ARM GNU/Linux with ELF)", stderr);
#undef TARGET_DEFAULT_FLOAT_ABI
#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD
#undef TARGET_DEFAULT
#define TARGET_DEFAULT (0)
#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6
#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux -p"
#undef MULTILIB_DEFAULTS
#define MULTILIB_DEFAULTS \
{ "marm", "mlittle-endian", "mhard-float", "mno-thumb-interwork" }
/* Now we define the strings used to build the spec file. */
#undef LIB_SPEC
#define LIB_SPEC \
"%{pthread:-lpthread} \
%{shared:-lc} \
%{!shared:%{profile:-lc_p}%{!profile:-lc}}"
#define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-lfloat} -lgcc"
#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
#define LINUX_TARGET_LINK_SPEC "%{h*} %{version:-v} \
%{b} \
%{static:-Bstatic} \
%{shared:-shared} \
%{symbolic:-Bsymbolic} \
%{rdynamic:-export-dynamic} \
%{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "} \
-X \
%{mbig-endian:-EB}" \
SUBTARGET_EXTRA_LINK_SPEC
#undef LINK_SPEC
#define LINK_SPEC LINUX_TARGET_LINK_SPEC
#define TARGET_OS_CPP_BUILTINS() \
do \
{ \
LINUX_TARGET_OS_CPP_BUILTINS(); \
} \
while (0)
/* This is how we tell the assembler that two symbols have the same value. */
#define ASM_OUTPUT_DEF(FILE, NAME1, NAME2) \
do \
{ \
assemble_name (FILE, NAME1); \
fputs (" = ", FILE); \
assemble_name (FILE, NAME2); \
fputc ('\n', FILE); \
} \
while (0)
/* NWFPE always understands FPA instructions. */
#undef FPUTYPE_DEFAULT
#define FPUTYPE_DEFAULT FPUTYPE_FPA_EMU3
/* Call the function profiler with a given profile label. */
#undef ARM_FUNCTION_PROFILER
#define ARM_FUNCTION_PROFILER(STREAM, LABELNO) \
{ \
fprintf (STREAM, "\tbl\tmcount%s\n", \
(TARGET_ARM && NEED_PLT_RELOC) ? "(PLT)" : ""); \
}
/* The GNU/Linux profiler clobbers the link register. Make sure the
prologue knows to save it. */
#define PROFILE_HOOK(X) \
emit_insn (gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (SImode, LR_REGNUM)))
/* The GNU/Linux profiler needs a frame pointer. */
#define SUBTARGET_FRAME_POINTER_REQUIRED current_function_profile